18-56718482-A-G

Variant names:

• chr18-56718482-A-G
• rs11664579
• NM_015285.3:c.1774+323A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_015285.3(WDR7):​c.1774+323A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.192 in 152,214 control chromosomes in the GnomAD database, including 3,425 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.19 (3425 hom., cov: 32)
• Consequence: WDR7 NM_015285.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.05
• Publications: 6 publications found

Genes affected

WDR7 (HGNC:13490): (WD repeat domain 7) This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD) that may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation. The encoded protein forms the beta subunit of rabconnectin-3 and binds directly with Rab3A GDP/GTP exchange protein and indirectly with Rab3A GDP/GTP activating protein; these proteins are regulators of Rab3 small G protein family members involved in control of the calcium-dependant exocytosis of neurotransmitters. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.271 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015285.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WDR7	NM_015285.3	MANE Select	c.1774+323A>G		intron	N/A	NP_056100.2
	WDR7	NM_001382487.1		c.1774+323A>G		intron	N/A	NP_001369416.1
	WDR7	NM_001382485.1		c.1774+323A>G		intron	N/A	NP_001369414.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WDR7	ENST00000254442.8	TSL:1 MANE Select	c.1774+323A>G		intron	N/A	ENSP00000254442.3
	WDR7	ENST00000357574.7	TSL:5	c.1774+323A>G		intron	N/A	ENSP00000350187.2
	WDR7	ENST00000589935.1	TSL:4	c.-1+66906A>G		intron	N/A	ENSP00000467485.1

Frequencies

GnomAD3 genomes AF: 0.192 AC: 29181 AN: 152096 Hom.: 3419 Cov.: 32

Gnomad AFR AF: 0.0656

Gnomad AMI AF: 0.258

Gnomad AMR AF: 0.277

Gnomad ASJ AF: 0.171

Gnomad EAS AF: 0.142

Gnomad SAS AF: 0.243

Gnomad FIN AF: 0.335

Gnomad MID AF: 0.174

Gnomad NFE AF: 0.228

Gnomad OTH AF: 0.186

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.192 AC: 29191 AN: 152214 Hom.: 3425 Cov.: 32 AF XY: 0.199 AC XY: 14809 AN XY: 74416

African (AFR) AF: 0.0655 AC: 2722 AN: 41574

American (AMR) AF: 0.278 AC: 4245 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.171 AC: 594 AN: 3472

East Asian (EAS) AF: 0.142 AC: 739 AN: 5190

South Asian (SAS) AF: 0.242 AC: 1167 AN: 4820

European-Finnish (FIN) AF: 0.335 AC: 3545 AN: 10572

Middle Eastern (MID) AF: 0.170 AC: 50 AN: 294

European-Non Finnish (NFE) AF: 0.228 AC: 15499 AN: 67988

Other (OTH) AF: 0.187 AC: 395 AN: 2116

Alfa AF: 0.144 Hom.: 539

Bravo AF: 0.178

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	4.3
DANN	Benign	0.55
PhyloP100		1.1
Mutation Taster		=100/0	polymorphism (auto)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs11664579; hg19: chr18-54385713;